Uniweld’s P4KD9S aluminum soft solder flux kit with metal tip applicator is a great solution for the service technician who is frequently confronted with the task of repairing or joining aluminum to aluminum and aluminum to copper or brass.  A common repair problem occurs when an air conditioning system’s evaporator coil develops a small pinhole leak. The included UNI-4300 flux is an excellent product for this repair application due to its low melting point of 500°F (260 °C) and 20,000 PSI tensile strength.

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